Map in qml.. How to pin point a place in map

[Ramkumar Rammohan]

Here using this below code map view is integrated into application.
Map {
id: mapView
anchors.fill: parent
plugin: plugin
property MapCircle circle

            Component.onCompleted: {
                circle = Qt.createQmlObject('import QtLocation 5.3; MapCircle {}', page)
                circle.center = positionSource.position.coordinate
                circle.radius = 5000.0
                circle.color = 'green'
                circle.border.width = 3
                map.addMapItem(circle)
            }
    }

I don't know how to pin point a specific place in map. Help me to found the above.